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  Indian J Med Microbiol
 

Figure 5: (a) Measuring peak, mean gradients, and pressure half time. Mean gradient measures 14 mmHg and P1/2t of 264 ms suggesting severe mitral stenosis. (b) In this spectral Doppler waveform, only gradients can be measured. P1/2 t cannot be measured

Figure 5: (a) Measuring peak, mean gradients, and pressure half time. Mean gradient measures 14 mmHg and P1/2t of 264 ms suggesting severe mitral stenosis. (b) In this spectral Doppler waveform, only gradients can be measured. P1/2 t cannot be measured